✅ CHINT 198412 – NB1L-63 RCBO – 3P+N, 63A, C Curve, 300mA Sensitivity, 6kA Breaking Capacity Description (English): The CHINT NB1L-63 RCBO is a powerful circuit protection solution engineered for large-scale three-phase + neutral installations. With a rated current of 63A, C-curve tripping characteristics, and 300mA leakage sensitivity, it delivers robust protection against overloads, short circuits, and high-level residual current faults that may lead to fire hazards. This device supports AC-type earth leakage detection and features a short-circuit breaking capacity of 6kA. Designed for industrial machinery and heavy-load distribution systems, it complies with IEC 61009-1 standards and operates at 50/60Hz. Its integrated thermal-magnetic tripping and leakage detection ensure durable and reliable safety. Specifications (English): Model: NB1L-63 Part Number: CHINT 198412 Poles: 3P+N Rated Current [In]: 63A Curve Type: C Sensitivity Current: 300mA Breaking Capacity: 6kA Frequency: 50/60Hz Standards: IEC 61009-1 Protection Type: Overload, short circuit, residual current (AC) Tripping Mechanism: Thermal-magnetic with leakage detection